Rolex
Day-Date 40 228235-0004— lug 20mm
Rolex Day-Date 40 228235-0004: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Rolex 228235-0004The essential strap measurement.
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Rolex caliber 3255 Hours, Minutes, Seconds | Date, Day | Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Day-Date 40
FAQ
What is the lug width of the Rolex Day-Date 40 reference 228235-0004?
The Day-Date 40 in rose gold, model reference 228235-0004, features a 20mm lug width. This is the exact distance between the two lugs where the strap attaches. Verifying this measurement is essential before purchasing any aftermarket strap to ensure perfect compatibility.
What is the best strap material for a Rolex Day-Date 40 228235-0004?
For a Day-Date 40 in rose gold, alligator remains the most noble and traditional choice. It creates an impeccable formal aesthetic with natural brown tones that develop patina over time. Shell cordovan is a contemporary alternative with exceptional durability. Vegetable-tanned calf leather offers a more pronounced patina development. Even black or navy NATO canvas creates a fascinating modern contrast.
How do I change the strap on my Day-Date 40 228235-0004?
The strap is changed by removing the lugs via a small screw or pin present on each side of the case. It is advisable to entrust this task to an experienced watchmaker to avoid damage to the rose gold case. Milanostraps also offers personalised installation services at the Casati Milano atelier in Milan, by appointment.
Can I use a compatible aftermarket strap on a Rolex Day-Date 40 228235-0004?
Yes, absolutely. The strap must have an exact 20mm lug width and be crafted from premium materials—alligator, cordovan, or top-grade calf leather. A high-quality bespoke strap is not only compatible but often represents a more audacious stylistic choice compared to original Rolex straps.
How long does a leather strap last on a Rolex Day-Date 40?
A premium-quality leather strap—alligator, cordovan, or vegetable-tanned calf—typically lasts 3 to 5 years with daily wear. Longevity depends on humidity exposure, frequency of use, and maintenance. A strap from Casati Milano includes an 18-month warranty against manufacturing defects. The patina that develops over time is part of the piece's character, not a fault.
The next step
The right strap isn’t chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →By appointment only · Milan
The atelier's website: casatimilano.com